I have never seen such warnings.
Yes, they do. Still, it is annoying to be piloting an aircraft in
instrument conditions and have GPS go away. When it has happened usually
I am prepared to switch back to VOR navigation.
--
 <https://www.lloyd.aero>
Brian Lloyd
706 Flightline
Spring
) are pretty good too.
LMR195 is pretty good but not nearly as flexible as the aforementioned
cables. LMR400 is just too big and inflexible for easy use on the bench.
--
 <https://www.lloyd.aero>
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero <mailto://br...@l
m (of course it does) I can imagine, as the output of the array falls
off, the MPPT algorithm "hunting" to find an optimum operating point and
causing bus voltage to vary.
Of course, it could always be the Radar Men from the Moon.
--
Brian Lloyd
706 Flightline
Spring Branch, T
st impact.
>
That is indeed the question. Given the experience level here I was hoping
that others had run into similar issues and might have more information to
share with me, or even point me to something that would works as well or
better than the Ublox.
Thanks! I appreciate your input
On Sat, Mar 14, 2020 at 10:57 AM Bob kb8tq wrote:
> Hi
>
>
> > On Mar 14, 2020, at 10:54 AM, Brian Lloyd wrote:
> >
> > On Fri, Mar 13, 2020 at 8:49 PM Bob kb8tq wrote:
> >
> >> Hi
> >>
> >> If you always operate in fixed loc
hould I be
looking at other units. While I don't want to spend $50(us) on a receiver,
if it does the best job, it will fit the budget and that extra timing
output I can use to generate 10MHz is quite attractive.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero
+1.210.802-8F
the best
performance.
Hal Murray: Yes, I am trying to discipline the system clock.
Arne: Yes, I was considering using gpsd.
Right now I am leaning toward the Ublox LEA-M8T. I have a use for the other
programmable output from the Ublox.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 7
e in case we need to make more.
> On Fri, Mar 13, 2020 at 10:07 AM Brian Lloyd wrote:
>
> > I have an application where I need to synchronize the internal TOD RTC
> in a
> > raspberry pi and need to pick a GPS module. We are building our own
> > hardware but s
RTC and will run into diminishing returns, so even the M8T
might be overkill.
Has anyone here figured out what the reasonable limit is for timing on a
Pi, and what makes sense for a timing module for an application like this?
Thanks.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br
egulator and found a usable op-amp to use as a buffer.
> I got in touch with them and they seemed very nice. They sent me a new
> box and I've been running it for a few weeks.
>
> Brian Lloyd added the 2 parts to his unit and he was able to get a
> decent output wave. The weird thing i
listinfo/time-nuts_lists.febo.com
>>> and follow the instructions there.
>>> <5MC5735H.jpg>___
>>> time-nuts mailing list -- time-nuts@lists.febo.com
>>> To unsubscribe, go to
>>> http://lists.f
could they have been backup
units in a box that never got put into service? That would suggest that
they have full life available on the Rb lamp.
--
 <https://www.lloyd.aero>
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero <mailto://br.
nyone know
the -12V current requirement of the T-bolt off their heads? (Yes, I know, I
can take everything apart and stick an ammeter in series with each leg but
if someone knows, I can avoid having to do that. Yes, I am being lazy.)
Thanks in advance.
--
Brian Lloyd
706 Flightline
Spring Branch
ttps://tapr.org/?product=tadd-3-pulse-per-second-distribution-amplifier
TAPR TADD-1 for 10MHz distribution
https://tapr.org/?product=tadd-1-rf-distribution-amplifier
There are better solutions but these have a good cost:performance ratio.
--
 <https://www.lloyd.aero>
Brian Lloyd
706 Flightl
uts
of that chip so the 1pps is lost somewhere else.
Does anyone have a schematic that I can use to trace back the 1pps?
> On Thu, 16 Jan 2020 20:44:43 -0600, Brian Lloyd wrote:
>
> >After quite some time I dragged out my Tbolt and fired it up. Comes up
> >OK. Lady Heather is happy.
the Thunderbolt-E but not the original thunderbolt. Not sure it
will do the right thing. Does anyone have an older copy of the program
for configuring the T-bolt?
Thanks in advance.
--
 <https://www.lloyd.aero>
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero <ma
well enough for that. Also, the only device I
have to DO the comparison is a Fluke T7260a. Thinking about a TICC. Advice?
Brian, WB5BL
--
 <https://www.lloyd.aero>
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero <mailto://br...@lloyd.aero>
+1.
hat they did spend some effort trying
to quiet down the noise at the power input.
And here I was worried what my next crazy project would be.
>
Heh.
> George, N2FGX
>
> On 12/22/2019 12:49, Brian Lloyd wrote:
> >
> > On 11/26/19 09:28, x...@darksmile.net wrote:
> >> Hel
itely on the right track. I need 7.5V out (if it tracked
the input that would be perfect) and the pinout is different, i.e. the
NTP server has a pinout of gnd, in, out, gnd, respectively.
But you definitely found something in the ballpark. Thanks!
--
 <https://www.lloyd.aero>
Brian Llo
On Mon, Dec 23, 2019 at 9:42 AM Brian Lloyd wrote:
>
>
> On 12/22/19 17:16, Adrian Godwin wrote:
> > Voltage converter might be one of these :
> >
> > https://www.we-online.com/catalog/datasheet/177920521.pdf
> >
> > You can also sometimes find a si
sure someone here has some ideas about getting this to work.
Thanks in advance for humoring me.
--
 <https://www.lloyd.aero>
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero <mailto://br...@lloyd.aero>
+1.210.802.8359
of
motion.
Now we just have fast cameras or direct measurement of acceleration and
velocity.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero
+1.210.802-8FLY (1.210.802-8359)
___
time-nuts mailing list -- time-nuts@lists.feb
ts
audio synchronized, and have the voice mixed over the top. So long as the
voice message completes before the time mark, everything is fine. That
would allow the simple time pulse to be synchronous and the voice to be
asynchronous.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd
he $100 nixie tube clock board they are
using to drive the displays. I have the same board with the same
features on my nixie tube clocks. I like setting the LEDs for that cool
purple glow that the old gas VR tubes exhibited.
0A2 anyone?
>
> Jean-Louis F6AGR
--
Brian Lloyd
706 Flightline
dicate the time instead
of nixie tubes, which didn't exist back then. Hmmm, a GPS receiver, an
arduino, 6 stepper motors ...
The craftsmanship is nice. The price, not so much. ;-)
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
+1.210.802.8359
__
ennopower.com/collections/12v-series-lifepo4-batteries/products/12v-8ah-lfp-battery-abs-sealed-black-case
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
+1.210.802.8359
___
time-nuts mailing list -- time-nuts@lists.febo.com
To unsubscribe
en 4800 to 5200 mA, I am convinced
> that I found in the US a very viable source. No commercial or any other
> interest, now my only problem is how to get rid of the other junk.
https://bioennopower.com/
I use their LiFePO4 batteries to build packs for lots of different kit.
--
Brian Lloyd
70
y? I'm going to be really busy starting next week
> for a month commissioning a satellite launching next week, so this
> weekend is my last opportunity to fool with actual technology.
>
DX Engineering or MFJ. You might find that HRO has one or the other in
stock. Don't they have a store in Las Ve
; A check into the Federal Supply System indicates that that model
> oscillator was an alternate for the venerable 10544 and 10811 oscillators,
> so pinouts should be the same as those models.
>
Thank you.
> Cheers,
> Dave M
>
>
>
>
>
> - Original Message -
for the buffer board?
3. Does anyone have a 15-pin card-edge connector for the buffer board?
My plan is to turn it into a GPSDO.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero
+1.210.802-8FLY (1.210.802-8359)
___
time-nuts
I also consider the discussion of GPS jamming to be relevant because, for
people who DO want/need time-nuts accuracy, GPS is far and away the most
convenient reference. Knowing how it might fail is useful.
YMMV.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero
+1.210.802-8FLY
e overall network.
>
Yeah, I have some experience with running a large net. I have a little
experience with how the Internet runs. ;-)
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero
+1.210.802-8FLY (1.210.802-8359)
___
tim
gnal and then uses an SSB transceiver to upconvert
to the desired output frequency. Even worst-case the standard NTP
implementation on Windows is more than sufficient for synchronization.
--
Brian Lloyd
706 Flightline
Spring Branch, TX 78070
br...@lloyd.aero
+1.210.802-8FLY (1.210.802-8359)
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